The interest in aerosol observations from satellite passive instrument is steadily increasing as a result of the better understanding of the key role played by aerosols within the climate system. Satellite instruments supply global observations for establishing the aerosol climatology and characterizing single aerosol events. Since the 1980s data from geostationary meteorological satellites, su...

Geostationary sensors bear the potential to derive and analyze daily and seasonal trends of aerosol optical depth (AOD) from spatially homogeneous data. However, to date most AOD retrieval algorithms from geostationary sensors are limited to sea surfaces. In this study, a multi-temporal technique to retrieve AOD over land from the Spinning Enhanced Visible and Infra-Red Imager (SEVIRI) on-board...

For the vast majority of geostationary satellites currently in orbit, station keeping activities including orbit determination and maneuver planning execution are ground-directed dependent on availability ground-based satellite control personnel facilities. However, a requirement linked to autonomy survivability cases interrupted ground support is often one stipulated provisions platform design...

1. Problem Statement and Objectives 1.1. Problem Statement 1.2. Objectives 1.2.1. Research Questions 1.3. Background 1.3.1. Trends in Geostationary Communication Satellite Design 1.3.1.1. What are power amplifiers? Why are they important? 1.3.1.2. Traveling Wave Tube Amplifiers 1.3.1.3. Solid State Power Amplifiers 1.3.1.4. SSPA vs. TWTA Space Technologies 1.3.2. Space Weather Phenomena 1.3.2.1...

With the growing demand for accurate and reliable worldwide differential GPS positioning, there has been a significant move towards the use of real-time GPS augmentation systems with wide area differential positioning capabilities. The US Wide Area Augmentation System (WAAS) and the European Geostationary Navigation Overlay system (EGNOS) are good examples of such a move. While these augmentati...